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cleanup: use errors.As() for error type checks

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Replaces some remaining old-style error type checks with errors.As()

Signed-off-by: Sven Anderson <sven@redhat.com>
This commit is contained in:
Sven Anderson 2020-07-06 19:51:04 +02:00 committed by mergify[bot]
parent 310c36e319
commit 13f291dfc6
3 changed files with 29 additions and 15 deletions
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27
internal/rbd/controllerserver.go
View File

@ -223,7 +223,8 @@ func (cs *ControllerServer) CreateVolume(ctx context.Context, req *csi.CreateVol
}
defer func() {
if err != nil {
if _, ok := err.(ErrFlattenInProgress); !ok {
var efip ErrFlattenInProgress
if !errors.As(err, &efip) {
errDefer := undoVolReservation(ctx, rbdVol, cr)
if errDefer != nil {
klog.Warningf(util.Log(ctx, "failed undoing reservation of volume: %s (%s)"), req.GetName(), errDefer)
@ -234,7 +235,8 @@ func (cs *ControllerServer) CreateVolume(ctx context.Context, req *csi.CreateVol
err = cs.createBackingImage(ctx, cr, rbdVol, rbdSnap)
if err != nil {
if _, ok := err.(ErrFlattenInProgress); ok {
var efip ErrFlattenInProgress
if errors.As(err, &efip) {
return nil, status.Error(codes.Aborted, err.Error())
}
return nil, err
@ -268,7 +270,8 @@ func (cs *ControllerServer) CreateVolume(ctx context.Context, req *csi.CreateVol
func checkFlatten(ctx context.Context, rbdVol *rbdVolume, cr *util.Credentials) error {
err := rbdVol.flattenRbdImage(ctx, cr, false)
if err != nil {
if _, ok := err.(ErrFlattenInProgress); ok {
var efip ErrFlattenInProgress
if errors.As(err, &efip) {
return status.Error(codes.Aborted, err.Error())
}
if errDefer := deleteImage(ctx, rbdVol, cr); errDefer != nil {
@ -294,7 +297,8 @@ func (cs *ControllerServer) createVolumeFromSnapshot(ctx context.Context, cr *ut
err := genSnapFromSnapID(ctx, rbdSnap, snapshotID, cr)
if err != nil {
if _, ok := err.(util.ErrPoolNotFound); ok {
var epnf util.ErrPoolNotFound
if errors.As(err, &epnf) {
klog.Errorf(util.Log(ctx, "failed to get backend snapshot for %s: %v"), snapshotID, err)
return status.Error(codes.InvalidArgument, err.Error())
}
@ -342,7 +346,8 @@ func (cs *ControllerServer) createBackingImage(ctx context.Context, cr *util.Cre
defer func() {
if err != nil {
if _, ok := err.(ErrFlattenInProgress); !ok {
var efip ErrFlattenInProgress
if !errors.As(err, &efip) {
if deleteErr := deleteImage(ctx, rbdVol, cr); deleteErr != nil {
klog.Errorf(util.Log(ctx, "failed to delete rbd image: %s with error: %v"), rbdVol, deleteErr)
}
@ -701,7 +706,8 @@ func (cs *ControllerServer) CreateSnapshot(ctx context.Context, req *csi.CreateS
defer vol.Destroy()
err = vol.flattenRbdImage(ctx, cr, false)
if _, ok := err.(ErrFlattenInProgress); ok {
var efip ErrFlattenInProgress
if errors.As(err, &efip) {
return &csi.CreateSnapshotResponse{
Snapshot: &csi.Snapshot{
SizeBytes: rbdSnap.SizeBytes,
@ -824,7 +830,8 @@ func (cs *ControllerServer) doSnapshotClone(ctx context.Context, parentVol *rbdV
defer func() {
if err != nil {
if _, ok := err.(ErrFlattenInProgress); !ok {
var efip ErrFlattenInProgress
if !errors.As(err, &efip) {
// cleanup clone and snapshot
errCleanUp := cleanUpSnapshot(ctx, cloneRbd, rbdSnap, cloneRbd, cr)
if errCleanUp != nil {
@ -864,7 +871,8 @@ func (cs *ControllerServer) doSnapshotClone(ctx context.Context, parentVol *rbdV
err = cloneRbd.flattenRbdImage(ctx, cr, false)
if err != nil {
if _, ok := err.(ErrFlattenInProgress); ok {
var efip ErrFlattenInProgress
if errors.As(err, &efip) {
return ready, cloneRbd, nil
}
return ready, cloneRbd, err
@ -940,7 +948,8 @@ func (cs *ControllerServer) DeleteSnapshot(ctx context.Context, req *csi.DeleteS
err = rbdVol.getImageInfo()
if err != nil {
if _, ok := err.(ErrImageNotFound); !ok {
var einf ErrImageNotFound
if !errors.As(err, &einf) {
klog.Errorf(util.Log(ctx, "failed to delete rbd image: %s/%s with error: %v"), rbdVol.Pool, rbdVol.VolName, err)
return nil, status.Error(codes.Internal, err.Error())
}

6
internal/rbd/rbd_journal.go
View File

@ -155,7 +155,8 @@ func checkSnapCloneExists(ctx context.Context, parentVol *rbdVolume, rbdSnap *rb
if errors.As(err, &einf) {
err = parentVol.deleteSnapshot(ctx, rbdSnap)
if err != nil {
if _, ok := err.(ErrSnapNotFound); !ok {
var esnf ErrSnapNotFound
if !errors.As(err, &esnf) {
klog.Errorf(util.Log(ctx, "failed to delete snapshot %s: %v"), rbdSnap, err)
return false, err
}
@ -181,7 +182,8 @@ func checkSnapCloneExists(ctx context.Context, parentVol *rbdVolume, rbdSnap *rb
// check snapshot exists if not create it
_, err = vol.getSnapInfo(rbdSnap)
if _, ok := err.(ErrSnapNotFound); ok {
var esnf ErrSnapNotFound
if errors.As(err, &esnf) {
// create snapshot
sErr := vol.createSnapshot(ctx, rbdSnap)
if sErr != nil {

11
internal/rbd/snapshot.go
View File

@ -17,10 +17,11 @@ package rbd
import (
"context"
"errors"
"fmt"
"github.com/ceph/ceph-csi/internal/util"
"github.com/pkg/errors"
"k8s.io/klog"
)
@ -36,7 +37,7 @@ func createRBDClone(ctx context.Context, parentVol, cloneRbdVol *rbdVolume, snap
err = cloneRbdVol.cloneRbdImageFromSnapshot(ctx, snap)
if err != nil {
klog.Errorf(util.Log(ctx, "failed to clone rbd image %s from snapshot %s: %v"), cloneRbdVol.RbdImageName, snap.RbdSnapName, err)
err = errors.Errorf("failed to clone rbd image %s from snapshot %s: %v", cloneRbdVol.RbdImageName, snap.RbdSnapName, err)
err = fmt.Errorf("failed to clone rbd image %s from snapshot %s: %w", cloneRbdVol.RbdImageName, snap.RbdSnapName, err)
}
errSnap := parentVol.deleteSnapshot(ctx, snap)
if errSnap != nil {
@ -64,14 +65,16 @@ func createRBDClone(ctx context.Context, parentVol, cloneRbdVol *rbdVolume, snap
func cleanUpSnapshot(ctx context.Context, parentVol *rbdVolume, rbdSnap *rbdSnapshot, rbdVol *rbdVolume, cr *util.Credentials) error {
err := parentVol.deleteSnapshot(ctx, rbdSnap)
if err != nil {
if _, ok := err.(ErrSnapNotFound); !ok {
var esnf ErrSnapNotFound
if !errors.As(err, &esnf) {
klog.Errorf(util.Log(ctx, "failed to delete snapshot: %v"), err)
return err
}
}
err = deleteImage(ctx, rbdVol, cr)
if err != nil {
if _, ok := err.(ErrImageNotFound); !ok {
var einf ErrImageNotFound
if !errors.As(err, &einf) {
klog.Errorf(util.Log(ctx, "failed to delete rbd image: %s/%s with error: %v"), rbdVol.Pool, rbdVol.VolName, err)
return err
}